Finding the Fourth Proportional to 6,429.48, 8,875.57 and 3,777.05

Step by Step Solution

1. Step 1: Write the proportion equation
   6,429.48 : 8,875.57 = 3,777.05 : x
2. Step 2: Convert to fraction form
   6,429.48/8,875.57 = 3,777.05/x
3. Step 3: Cross multiply
   6,429.48x = 8,875.57 × 3,777.05
4. Step 4: Simplify right side
   6,429.48x = 33,523,484.41
5. Step 5: Solve for x
   x = 33,523,484.41/6,429.48
6. Step 6: Final answer
   x = 5,214.03